1st edition, 20.04.2021
7000.05072, 1st edition, 20.04.2021
7000.05072
Installation
52
4.2.2
Drive connections
The maximum length of the cable between the Motion Controller and motor depends on
the sensor system used and the electrical and magnetic fields in the environment.
Tab. 85: Guide values for the cable length
Longer connection cables are generally permissible, but must be validated for the target
installation.
Optimization of the behavior in respect of transient emission and interference resistance
may require additional EMC measures (see chap. 4.3, p. 59).
Encoder type
Unshielded length
Shielded length
a)
a)
applies to cables separately shielded from the motor phase power cables.
Digital Hall sensors
0.5 m
2–5 m
Analog Hall sensors
0.5 m
2–5 m
Incremental encoders without line driver
0.5 m
2–5 m
Incremental encoders with line driver
b)
b)
For incremental encoders with line driver interface, the use of twisted-pair connection cables is recommended.
2 m
2–5 m
Absolute encoders without line driver
0.3 m
0.5 m
Absolute encoders with line driver
c)
c)
For absolute encoders with line driver interface, the connection cables must be twisted-pair cables to ensure
reliable operation.
2 m
5 m
